You are saving $30. Adult tickets are $15 each. So for the price of two adults, you both will get in free for a year.

Wait there's more:

Second offer:

You can get two free youth tickets for ages (ages 3 to 12 $10 each) when you purchase one adult or senior general admission ticket.

Children 2 and under are free.

You will need to print this page out and take it with you to the general ticket window at the museum. This is good Monday through Thursday only during regular hours. Not valid with online ticket purchases or previously purchased tickets.